US border troops building detention facilities for migrants

The troops are being deployed as a migrant caravan makes its way north to the US border. The Department of Homeland Security's Customs and Border Protection agency have the mission of securing the borders.

President Donald Trump's decision to deploy United States active duty troops and earlier deployment of National Guard forces to the southern border could cost between $200 million and $300 million, according to an independent analysis and Department of Defense figures on guard deployments.

On Saturday during one of his raucous rallies - as voting in the 2018 midterms wraps up Tuesday - President Donald Trump told the people of Montana that barbed wire could be "beautiful".

The general assured his audience that there was "no plan for the soldiers to come in with immigrants or to reinforce the Department of Homeland Security as they are conducting their mission".

The disclosure by United States officials illustrates the tension within the administration over using military resources to fortify the border against illegal immigration, a top election issue for President Donald Trump's base.

"We are providing enabling capabilities", he continued.

Also, the military is providing "both trucks and helicopter support and then also some medical support", Durham said.

The service members on the border "know exactly what they are doing, they know why they are doing it and they have the proper training and equipment to do it", he said.

As of this past Thursday, the first 100 active-duty troops arrived at the U.S.

On Friday night, Veracruz governor Miguel Ángel Yunes offered bus rides to the country's capital, however he quickly rescinded the offer, blaming maintenance work on Mexico City's water supply which he said left 7 million people without water over the weekend.

Bush ordered Operation Jump Start, which lasted from 2006 to 2008, and deployed 6,000 National Guard troops to California, Arizona, New Mexico and Texas.

The official noted that the request was different than a previously approved DHS request from earlier this year to house migrant families further along in the immigration process, on military bases.

There is still no official cost estimate made public for the 45-day mission, but Manning said the Defense Department will "absorb" the costs of the operation.